A 35-year-old man presented with serial blood pressure recordings of above 140/90 mmHg. Which one of the following signs is not a clue for an underlying cause of hypertension (secondary hypertension)?
Vitiligo
Radio-femoral delay suggests coarctation of aorta, enlarged kidneys suggest polycystic kidney disease, and bull neck/buffalo hump suggest Cushing's syndrome - all recognized secondary hypertension clues. Vitiligo is an autoimmune skin condition with no established association with secondary hypertension.